Clutch mechanism



K. BERGER CLUTCH MECHANISM June` 26, 1928.

Filed Jan. 24, 1927 I NVENTOR. 7u/fe exyef B Y A TTORNE Y.

Patented June 26, 1928.

. miran STATES Partnr, ortica.

' KNUTE BERGER,- or SEATTLE,V WASHINGTON..

CLUTCH p MECHAISM.

Apmication filed January 24, 1927. seriai 110.163,020.

My invention relates to improvements in clutch mechanism of the cone clutch type and v the object of my invention is to provide a cone clutch in which the cone isbuilt up ofv two'part sections and the cone parts are removable individually without dis-assembling any of the other parts of the clutch.

A further object is to provi-de a clutch in which the built up clutch cone is on a spoked wheel-and the cone sections are removable between the spokes of the wheel, and, in which the end of the drum. It will be understoodk that the invention may-be embodied in numerous other types of clutches.

Other and more specific objects will be apparent from the following description taken in connection with the accompanying drawmos.

n the drawings, Figure 1 is a view partly in section and partly in elevation showing my sectional clutch applied to a winding drum.

Fig. 2 is a fragmentary end view of the same, parts being shown in section.

Fig.4 3 is a fragmentary sectional view on a larger scale of my clutch showing the two parts of a section of said `clutch unbolted and one of said parts in a position it may assume when it is being inserted or removed.

Y Fig. 4 is a detached plan view of one of the clutch sections.

Referring to the drawings, throughoutr which like reference Vnumerals designate like parts, 5 designates a winding drum provided on one or both ends with an annular conical clutch receptacle 6 for the'reception of my sectional clutch cone.

The clutch cone proper is formed of a plurality of outer sections 7 and a plurality of inner sections 8. These sections 7 and 8 are relatively short as shown in Fig. 4 and are adapted to vbe secured, as by bolts 9, to a continuous supporting ring 10 that is preferably cast integrally with a gearwheel 11. The ring 10 is provided with annular shoulders 12 against which the respective base portions 13 of the clutch sections may abut to form a thrust bearing for said sections. The shoulders 12 areshallow enough so that the base portions o f the clutch sections will clear said shoulders,-see Fig. 3,'and pass over the same when the sections are being inserted or re-V moved. The outer sections 7 each have conveX preferably roughened surfacesltshaped to conform to the adjacent surfaceof the rei ceptacle jwhile the inner sections 8 each have concavesurfacesl, preferably roughened and also shaped to confornrto the ad? jacent surface of the'` receptacle 6. The surfaces 14 and 15 preferably both have friction material as brake lining 16 secured thereto, the frictionmaterial on each section being separablefrom that on the other sections.- Y v The gearwheels 11 vmay thatvarearranged far enough apart so that thejouter and vinner clutch sections 7 and 8 may be readily removed through Vthe open? ings between said spokes. The ring 10 and the clutchsections 7 and 8 secured thereto by bolts 9 form a cone' structure suiiciently flexible to permit any slight automatic adjustment that may be nec essary to correctly position the clutch member within the receptacle 6.

The outer and inner clutch members 7 and 8 are preferably arrangedin pairs and the ends of saidmembers are free and unattached relative to the ends of adjacent members so that each pair of clutch members constitutes a section that is free to flex slightly relative to the other sections. o

In the drawings I have shown a clutch at each end of the drum 5 and have shown aV gear wheel 11'at each end of said drum, the gear wheels being the driving members and being mounted on the same shaft 18 as the drum. Obviously in some cases only .one

clutch will be used. When the shaft 18 is mounted in bearings'and carefully alignedA have spokes 17 present invention it is possible tol take out the bolts 9 and remove, reline and replace theV sections 7 and 8 without disturbing the assembly of any of the mechanism that is associated therewith. This is made possible by making the inner sections separable from the outer sections and by making all of said sections short enough so they may be removed through the gearwheels 11 and by making the shoulders 12 shallow So thatthe normal clearance of the lined portions of the clutch sections, when released, Will permit the base portions 13 of the clutch Sections to clear said shoulderslQ.`

The foregoing descrition and aecompanyingdraivings 4clear y disclose a "pre-f ferre'd embodiment `of "my invention but it will be understood ythat thisi disclosure' 'is merelyillustrative and that such lchanges-'in drinn having' an annular clutch-receptacle of convergent cross se'ctlonal shape on the endf thereof, a gearu'rheel rotatably mounted' 'at oneend of said drum; an annular supporting ring and constituting an inner annular cone member all of said sectlonsbemg removable through the'openingsabetween the spokes of said gearwheel.

2.4Inl `a "clutch of the class described, a drum having an annular clutch receptacle of convergent 4erossseetional shape on the end thereof, a gearwheel rotatably mounted at oneiend of said drinn,V an annular Sup- `portingring rigid with said e gearwheel 1 in- `vvardfl `1i *from `the` peripheral "portionthereof; said gearvvheelA having-spokes that leave openings both inside"andiioutside of said supporting `ring and -said Supporting 'ring t having shallow sliouldersy =for1ned thereon,"`

outerfelutch sections `4removably bolted to saidA supporting J ringl and 4constituting u -an-- outer annular"V cone member and inner Vclultch sections removabljI bolted toy said supporting` ring and constituting an inner annular'cone 450 member all offsaid sections beingwremovable o through openings between the spokes"off.

said gearwheel; said clutch when released permitting F the -clutchsections' lfto be f tilted enough to elica r' lsaid "shoulders =wh"en said sections 'arel inserted and" removed Ini witness whereofgf hereuntosubscribe#` 

